DE2014215A1 - Control of the fuel nozzle - Google Patents

Control of the fuel nozzle

Info

Publication number
DE2014215A1
DE2014215A1 DE19702014215 DE2014215A DE2014215A1 DE 2014215 A1 DE2014215 A1 DE 2014215A1 DE 19702014215 DE19702014215 DE 19702014215 DE 2014215 A DE2014215 A DE 2014215A DE 2014215 A1 DE2014215 A1 DE 2014215A1
Authority
DE
Germany
Prior art keywords
control
nozzle
fuel nozzle
fuel
rooms
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19702014215
Other languages
German (de)
Inventor
Der Anmelder Ist
Original Assignee
Bergmann, Rolf, 8900 Augsburg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bergmann, Rolf, 8900 Augsburg filed Critical Bergmann, Rolf, 8900 Augsburg
Priority to DE19702014215 priority Critical patent/DE2014215A1/en
Publication of DE2014215A1 publication Critical patent/DE2014215A1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
    • F02M53/04—Injectors with heating, cooling, or thermally-insulating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/07—Nozzles and injectors with controllable fuel supply
    • F02M2700/074—Injection valve actuated by fuel pressure for pressurised fuel supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/07—Nozzles and injectors with controllable fuel supply
    • F02M2700/077—Injectors having cooling or heating means

Description

Steuerung der zum Patent angemeldeten Brennstoffdüse unter dem Aktenzeichen P 1954758.1 Im vorgenannten Text soll die Steuerung der zum Patent angemeldeten Brennstoffdüse unter dem Aktenzeichen P 1954758.1 beschrieben werden. Control of the patent pending fuel nozzle under the file number P 1954758.1 In the above text, the control of the patent pending Fuel nozzle can be described under the file number P 1954758.1.

Im Düsenkörper befinden sich in Höhe @@r Düsenlöcher je nach Anzahl der Düsenlochreihen Steuerringkanäle oder auch für jedes Loch einzeln ein Steuerdruckraum. Das Volumen eines Steuerringkanales soll etwa so ro?a sein wie das Volumen der zu steuernden Düsenlochreihe. Das Volumen des Steuerdruckraumes soll etwa so groß sein wie das Volumen des entsprechenden Düsenloches.Der Querschnitt der Steuerräüme muß auf alle Fälle so groß gehalten sein, daß bereits nach der geringsten Freigabe des Kraftstoffweges durch die Düsennadelsteuerkante, Steuerraum und Düsenloch mit vollem Brennstoffdruck beaufschlagt werden.Diese Maßnahme wird aanurcb erreicht, , daß ab Unterkante Düsenloch zu beiden Seiten ein Ringkanal oder kreisbogenförmiger Druckraum geschaffen wird, dessen Höhe und Tiefe dadurch bestimmt ist, daß sic'o der volle Brennstoffaruck Vor dem Düsenloch aufbauen kann.In the nozzle body there are nozzle holes at height @@ r depending on the number of the rows of nozzles, control ring channels or a separate control pressure chamber for each hole. The volume of a control ring channel should be roughly as ro? A as the volume of the to controlling nozzle hole row. The volume of the control pressure chamber should be about as large like the volume of the corresponding nozzle hole. The cross-section of the control spaces must In any case, it should be kept so large that even after the slightest release of the Fuel path through the nozzle needle control edge, control chamber and nozzle hole with full Fuel pressure can be applied. This measure is achieved aanurcb that From the lower edge of the nozzle hole on both sides an annular channel or a circular arc-shaped pressure chamber is created, the height and depth of which is determined by the fact that sic'o the full Fuel jerk can build up in front of the nozzle hole.

Die Höhe sollte so niedrig als möglich gehalten werden, damit der gesamte Nadelhub ebenfalls niedrig gehalten werden kann und eine ausreichende Dichtfläche zwischen den Steuerringkanälen erhalten bleibt.The height should be kept as low as possible so that the entire needle stroke can also be kept low and a sufficient sealing surface is retained between the control ring channels.

Im Nadelventilkörper oder im Brennstoffventil sind Druckfedern mit ve schiedener Ckarakteristik als Regelorgane untergebracht, die den Wadelhub und damit die Steuerräüme und zugehörigen Düsenlöcher, sowie gen gesamten Verbrennungsablauf steuern Durch entsprechende Auslegung der Feder(n) ist es gegebenenfalls möglich mit einer geringen stückzahl auszukommen, Die Aufteiling in Steuerringkanäle oder Steuerdruckräüme wurde deshalb gewählt, da man mit den Steuerdruckräümen eine noch feinere Abstufung und kleine@en Nadelhub erreichen kann.There are compression springs in the needle valve body or in the fuel valve ve different Ckarakteristik housed as regulating organs, the Wadelhub and thus the control rooms and associated nozzle holes, as well as the entire combustion process control It may be possible by appropriate design of the spring (s) get by with a small number of pieces, the division into control ring channels or Control pressure chambers were chosen because the control pressure chambers are one more can achieve finer gradations and small @ en needle stroke.

Fu@l tion der Stederrung: 1. Einspritzphase: Voreinspritzung - Lee@@ uf - Teillast Je nach Auf@@llung des Düsenlocl@@ rsch@itt@s können die verschiedensten Verbre@n@@@sabläüfe err icht @erden.Fu @ l tion of Stederrung: 1st injection phase: pre-injection - Lee @@ uf - partial load Depending on the opening of the nozzle locator, the most varied Verbre @ n @@@ sabläüfe err icht @erden.

Nachdem der Druck im Bren @toffor@@kro@@ den Düsenabspritz@r@@h@er@@@@@ @@@, wird die Düsenra@el an@e@@ben und @@ @@@@e Düs@@-loch, bzw. Disenlochreihe frei@ege @n.After the pressure in the Bren @ toffor @@ kro @@ the nozzle spray @ r @@ h @ er @@@@@ @@@, the nozzle ring is to @ e @@ ben and @@ @@@@ e nozzle @@ - hole or row of disen holes free @ ege @n.

2. Einspritzphase: Teillast - Vollast Die einz@spritzende en@@tof@@@n e in@ @@ Charakteristik der Feder(n) besti@@en den Druckanstie@ im @inspritzsystem, die @eiter Freigabe von Dusenlochquerschnitt @@ @amit den Ablauf der Verbrennung.2. Injection phase: Partial load - full load The injected en @@ tof @@@ n The characteristics of the spring (s) determine the pressure increase in the injection system, the @ next release of the nozzle hole cross-section @@ @a with the combustion process.

Claims (1)

Patentansprüche: Die Patentansprüche zur Steuerung der Düsennadel erheben sich auf den vorbeschriebenen Steuer@@ickraum ( räüme ) und dea Steuerringkanal(ringkanäle). Die @@r@ und Lage der Räüme soll der im Versuch am günstigsten gefundenen Raumauftei@@@. eatsprechen.Claims: The claims for controlling the nozzle needle rise on the above-described control room (rooms) and the control ring channel (ring channels). The @@ r @ and location of the rooms should correspond to the room layout that was found to be the most favorable in the experiment. eat speak.
DE19702014215 1970-03-24 1970-03-24 Control of the fuel nozzle Pending DE2014215A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19702014215 DE2014215A1 (en) 1970-03-24 1970-03-24 Control of the fuel nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702014215 DE2014215A1 (en) 1970-03-24 1970-03-24 Control of the fuel nozzle

Publications (1)

Publication Number Publication Date
DE2014215A1 true DE2014215A1 (en) 1971-10-14

Family

ID=5766174

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702014215 Pending DE2014215A1 (en) 1970-03-24 1970-03-24 Control of the fuel nozzle

Country Status (1)

Country Link
DE (1) DE2014215A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2384124A1 (en) * 1977-03-16 1978-10-13 Bosch Gmbh Robert FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
DE2740879A1 (en) * 1977-09-01 1979-03-15 Sulzer Ag INJECTION VALVE FOR RECEPTACLE COMBUSTION MACHINERY
FR2408042A1 (en) * 1977-11-04 1979-06-01 Bosch Gmbh Robert FUEL INJECTOR FOR INTERNAL COMBUSTION ENGINES
US4238075A (en) * 1978-01-28 1980-12-09 Audi Nsu Auto Union Aktiengesellschaft Fuel injection jet for injection combustion engines
US4269360A (en) * 1977-03-18 1981-05-26 Robert Bosch Gmbh Fuel injection nozzle
US4758169A (en) * 1986-02-12 1988-07-19 Sulzer Brothers Limited Injection valve for reciprocating internal combustion engine
DE10008445B4 (en) * 1999-02-25 2006-01-26 Avl List Gmbh Fuel injection nozzle for a direct-injection internal combustion engine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2384124A1 (en) * 1977-03-16 1978-10-13 Bosch Gmbh Robert FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
US4168804A (en) * 1977-03-16 1979-09-25 Robert Bosch Gmbh Fuel injection nozzle for internal combustion engines
US4269360A (en) * 1977-03-18 1981-05-26 Robert Bosch Gmbh Fuel injection nozzle
DE2740879A1 (en) * 1977-09-01 1979-03-15 Sulzer Ag INJECTION VALVE FOR RECEPTACLE COMBUSTION MACHINERY
FR2408042A1 (en) * 1977-11-04 1979-06-01 Bosch Gmbh Robert FUEL INJECTOR FOR INTERNAL COMBUSTION ENGINES
US4238075A (en) * 1978-01-28 1980-12-09 Audi Nsu Auto Union Aktiengesellschaft Fuel injection jet for injection combustion engines
US4758169A (en) * 1986-02-12 1988-07-19 Sulzer Brothers Limited Injection valve for reciprocating internal combustion engine
DE10008445B4 (en) * 1999-02-25 2006-01-26 Avl List Gmbh Fuel injection nozzle for a direct-injection internal combustion engine

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